Floor-sweep.



H. L. DAY.

FLOOR SWEEP. APPLICATION FILED D30. 7, 1908.

1,029,532, Patented June 11,1912.

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HENRY L. DAY, OF MINNEAPOLIS, MINNESOTA.

FLOOR-SWEEP.

Specification of Letters Patent.

PatentedJune 11, 1912.

I Application filed December 7, 1908. Serial No. 466,297.

To all whom it may concern:

Be it known that I, HENRY L. DAY, of Minneapolis, in the county ofI-Iennepin, State of Minnesota, have invented certain new and usefulImprovements in Floor- Sweeps, of which the following is aspecification.

This invention relates to improvements in devices known as floor-sweeps,which are adapted for use in connection with dust collecting systems forcollecting grain, mixed with dust, screenings, and other light material,and delivering the same to the main conductor of a dust collectingsystem.

The device herein described is particularly adapted for use inconnection with a dust collecting system such as shown, described andclaimed in my applications for patent of even date herewith, numbered466,294 and 466,295.

In the accompanying drawings, forming part of this specification; Figure1 is a sectional elevation of a portion of a grain cleaning house, orsimilar structure, having my improved floor-sweep arranged therein. Fig.2 is a similar View showing a modified structure. Fig. 3 is a verticalsection, and Fig. 4 an end elevation of one of the separators used inconnection therewith.

In all of the drawings, 2 represents a pipe or conductor that isconnectedwith the main conductor 3 of a dust collecting system. The

pipe 2 may be an extension or continuation of the main conductor, or itmay be a separate branch conductor connected to the main conductor, andI may employ a number of the pipes or conductors 2 and connect all ofthem to the same main conductor.

Floor-sweeps, such as described herein, may be connected to each'of theconductors 2, or other dust separating devices may be connected withsaid floor-sweeps to the same conductor or to dilferent conductors.

4.14 represent floors or galleries of a suitable grain cleaning house,or other structure, where the device is to be employed.

I prefer to arrange below each floor a separator 5 shown in detail inFigs. 8 and 4: of the drawings. This separator consists of a chamberhaving, preferably, side walls and with one vertical end wall andonesloping end wall, whereby a pocket 6 is formed in the lower part ofthe separator, which has an opening at its lower end that is closed byan automatic door or valve 7.

An inclined deflector 8 is preferably arranged near the central part ofthe separator and above the pocket 6 and suitable valve openings 9, l0and 11 are preferably provided in the straight end wall and the top wallof the separator. The opening 9 is preferably arranged below thedeflector 8.

An inlet conductor 12 is provided at the upper end of the separator.This conductor preferably extends through the floor 4. and is providedwith a suitable mouth-piece or inlet 13 having a valve or door 14. Theseparator is also provided at the top of the inclined wall 5 with theoutlet conductor 15 and this is connected directly or indirectly withthe conductor 2, .hereinbefore described.

16 represents a suitable fan casing, from which extends a conductor 17that leads to a dust collector 18. The dust outlet of this dustcollector is provided with a pipe 19, which leads to anysuitable'receptacle or discharging point for the dust passing throughsaid pipe 19.

Instead of using a separator 5 below each floor, I may, if preferred,employ a single separator, as shown in Fig. 2 of the drawings, andextend the conductor 12 through each of the floors 1 and provide it withan inlet or mouth-piece 13 at each floor.

With the construction shown in Fig. 1,

mixed grain, dust and like material may be swept from each floor intothe inlet 13 provided on said floor. The mixed material falls into theseparator'5. With the structure shown in Fig. 1, this will be theseparator below each floor.

With the structure shown in Fig. 2, the material from all of the floorswill fall into the same separator.

In either event, the mixed material entering the separator will besubjected to the upward and transverse air currents and the dust andlight material will betaken out by the air current and carried throughthe conductor 15 into the conductor 2 and thence to the fan and dustcollector 18. The grain and heavy material will fall into the pocket 6and when a suflicient amount has accumulated therein, its Weight willopen the door 7 and its material will fall out through a suitable spoutor receptacle.

I claim as my invention:

The combination, with a dust collecting system-arranged in agrain-cleaning house or other structure, having a series of floors,

a separating chamber located below each tem in communication with all ofthe sepafioor connected with said clust collecting sysrating chambers.10 tem, and a sweep opening above each floor In witness whereof, I havehereunto set through which grain and other material my hand this 30thday of November 1908.

5 may be swept from the floor into said sepa- HENRY L. DAY.

rator and means for conveying relatively WVitnesses: light materialseparated. from the grain from -C. G. HANSON, each separator into thedust collecting sys- J. A. BYINGTON.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Patents, Washington, D. C.

